http://digfir-published.macmillanusa.com/video_public_speaking_accessible/video_public_speaking_accessible_ch235.html
Chapter
235. Walking (NEEDS IMPROVEMENT)
59d7aed07894d2d37a000013
http://digfir-published.macmillanusa.com/video_public_speaking_accessible/video_public_speaking_accessible_ch235_dlap.xmlDLAP questions59d7aed07894d2d37a000013